Hi,
I am an F1 student and became a resident for tax purposes in 2017 and currently on STEM OPT. I recently realized that for the past 3 years (2017, 2018, 2019) tax return my employer did not withhold FICA taxes. I have reached out to them about this issue and they have fixed it going forward but are not willing to fix it retroactively.
How can I fix this issue? Is their a way to re-file tax returns and pay my share of FICA taxes.
Thanks.
